{"id":"CVE-2026-69522","revision":"dedcb0d9208a4295a62e96d90a8e3a94","records":[{"revision":"dedcb0d9208a4295a62e96d90a8e3a94","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-69522","aliases":[],"title":".NET and Visual Studio Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.","state":0,"publishedAt":"2026-09-08T17:10:32.415+00:00","modifiedAt":"2026-10-14T23:05:31.009+00:00","affected":[{"ecosystem":"Vendor product","name":".NET 10.0","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 10.0\",\n                    \"versions\": [\n                        {\n                            \"version\": \"10.0.0\",\n                            \"lessThan\": \"10.0.12\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":".NET 11.0","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 11.0\",\n                    \"versions\": [\n                        {\n                            \"version\": \"11.0.0\",\n                            \"lessThan\": \"11.0 RC1\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":".NET 8.0","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 8.0\",\n                    \"versions\": [\n                        {\n                            \"version\": \"8.0.0\",\n                            \"lessThan\": \"8.0.31\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":".NET 9.0","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 9.0\",\n                    \"versions\": [\n                        {\n                            \"version\": \"9.0.0\",\n                            \"lessThan\": \"9.0.20\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2\",\n                    \"platforms\": [\n                        \"Windows 10 Version 1607 for 32-bit Systems\",\n                        \"Windows 10 Version 1607 for x64-based Systems\",\n                        \"Windows Server 2016\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.0.0.0\",\n                            \"lessThan\": \"2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 3.5 AND 4.7.2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 3.5 AND 4.7.2\",\n                    \"platforms\": [\n                        \"Windows 10 Version 1809 for 32-bit Systems\",\n                        \"Windows 10 Version 1809 for ARM64-based Systems\",\n                        \"Windows 10 Version 1809 for x64-based Systems\",\n                        \"Windows Server 2019\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.7.0\",\n                            \"lessThan\": \"2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 3.5 AND 4.8","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 3.5 AND 4.8\",\n                    \"platforms\": [\n                        \"Windows 10 Version 1809 for 32-bit Systems\",\n                        \"Windows 10 Version 1809 for ARM64-based Systems\",\n                        \"Windows 10 Version 1809 for x64-based Systems\",\n                        \"Windows 10 Version 21H2 for 32-bit Systems\",\n                        \"Windows 10 Version 21H2 for ARM64-based Systems\",\n                        \"Windows 10 Version 21H2 for x64-based Systems\",\n                        \"Windows 10 Version 22H2 for 32-bit Systems\",\n                        \"Windows 10 Version 22H2 for ARM64-based Systems\",\n                        \"Windows 10 Version 22H2 for x64-based Systems\",\n                        \"Windows Server 2019\",\n                        \"Windows Server 2022\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.8.0\",\n                            \"lessThan\": \"2.0.50727.9070 & 3.0.30729.9068 & 4.8.4806.0\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 3.5 AND 4.8.1","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 3.5 AND 4.8.1\",\n                    \"platforms\": [\n                        \"Windows 10 Version 21H2 for 32-bit Systems\",\n                        \"Windows 10 Version 21H2 for ARM64-based Systems\",\n                        \"Windows 10 Version 21H2 for x64-based Systems\",\n                        \"Windows 10 Version 22H2 for 32-bit Systems\",\n                        \"Windows 10 Version 22H2 for ARM64-based Systems\",\n                        \"Windows 10 Version 22H2 for x64-based Systems\",\n                        \"Windows 11 Version 23H2 for ARM64-based Systems\",\n                        \"Windows 11 Version 23H2 for x64-based Systems\",\n                        \"Windows 11 Version 24H2 for ARM64-based Systems\",\n                        \"Windows 11 Version 24H2 for x64-based Systems\",\n                        \"Windows 11 Version 25H2 for ARM64-based Systems\",\n                        \"Windows 11 Version 25H2 for x64-based Systems\",\n                        \"Windows Server 2022\",\n                        \"Windows Server 2025\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.8.1\",\n                            \"lessThan\": \"2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2\",\n                    \"platforms\": [\n                        \"Windows Server 2012\",\n                        \"Windows Server 2012 R2\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.7.0\",\n                            \"lessThan\": \"4.7.4145.0\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 4.8","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 4.8\",\n                    \"platforms\": [\n                        \"Windows 10 Version 1607 for 32-bit Systems\",\n                        \"Windows 10 Version 1607 for x64-based Systems\",\n                        \"Windows Server 2012\",\n                        \"Windows Server 2012 R2\",\n                        \"Windows Server 2016\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.8.0\",\n                            \"lessThan\": \"4.8.4806.0\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 4.8.1","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 4.8.1\",\n                    \"platforms\": [\n                        \"Windows 11 Version 26H1 for ARM64-based Systems\",\n                        \"Windows 11 version 26H1 for x64-based Systems\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.8.0.0\",\n                            \"lessThan\": \"4.8.9347.0\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Visual Studio 2022 version 17.14","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Visual Studio 2022 version 17.14\",\n                    \"versions\": [\n                        {\n                            \"version\": \"17.14.0\",\n                            \"lessThan\": \"17.14.40\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Visual Studio 2026 version 18.9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Visual Studio 2026 version 18.9\",\n                    \"versions\": [\n                        {\n                            \"version\": \"18.9.0\",\n                            \"lessThan\": \"18.9.3\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","score":8.8,"severity":"HIGH"}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69522"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-69522","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-69522","identifiers":["CVE-2026-69522"]},"retained":false,"historicalAffected":[]}],"coverage":[]}